BS 4140-17:1986
Current
The latest, up-to-date edition.
Methods of test for aluminium oxide Determination of fluorine content
Hardcopy , PDF
English
02-28-1986
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Gives a spectrophotometric method, using alizarin complexone and lanthanum chloride for determining fluorine content of aluminium oxide used for the production of aluminium. Applicable to fluorine contents greater than 0,003%.
| Committee |
W/-
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| DevelopmentNote |
Also numbered as ISO 2828 Supersedes 85/52366 DC and BS 4140:ADD3(1974) (07/2005) Reviewed and confirmed by BSI, November 2016. (11/2016)
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| DocumentType |
Standard
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| Pages |
10
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| PublisherName |
British Standards Institution
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| Status |
Current
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| Supersedes |
This International Standard specifies a spectrophotometric method, using alizarin complexone and lanthanum chloride, for the determination of the fluorine content of aluminium oxide primarily used for the production of aluminium.
The method is applicable to fluorine (F) contents greater than 0,003 %.
| BS 4140-13:1986 | Methods of test for aluminium oxide Preparation of sample solution by treatment with hydrochloric acid under pressure |
| BS 5050:1974 | Methods of test for cryolite |
| BS 4140-1:1986 | Methods of test for aluminium oxide Preparation and storage of test samples |
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